How to attach styrofoam to a wooden wall. What is the most reliable way to glue polystyrene to a tree. How and how to glue the foam to various surfaces

Styrofoam is a cheap and warm insulation that is sold at any hardware store and has different densities. In addition to density, this material can have any thickness. Considering the question of how to glue the foam, you need to decide on the base and select the necessary glue. If the foam must be glued to the tree, then concrete contact, liquid nails on the foam or liquid foam will be required. You can use other fixing material that will hold the foam perfectly. The most reliable fastener for wood will be a self-tapping screw with washers. If the building freezes in winter, the walls are covered with frost, then the entire room will have to be insulated.

Considering the question of how to insulate walls with foam, you should contact specialists who will provide all the information indicating the insulation of houses. Wooden buildings are easily insulated both from the inside and outside of the room. This will require acrylic-based liquid nails, because this glue is water-based and does not dissolve the foam. Having dealt with the glue, you should consider how to fix the foam. This will require pre-agreed wood screws and metal washers. But it is worth considering the whole course of work in more detail. It is more expedient to perform wall insulation from the side of the facade. By choosing this approach, you can avoid garbage in the room and reduce the living space.

Next, priming is carried out with concrete contact and left for two hours to dry completely. After that, each sheet of foam is smeared with acrylic liquid nails and glued to the surface. The glue is applied in a zigzag pattern along the edges of the sheet and dotted in the middle, after which it is attached to the wall and attracted with self-tapping screws. Having considered this course of work, you can understand the question related to how to make foam plastic with your own hands. Having dealt with glue and fasteners, you should perform finishing work, which will indicate that the insulation of the building is completely finished.

This will again require liquid nails or liquid foam. At the moment, you will need to glue the ends of the foam together and thereby seal all the seams. Liquid nails are squeezed out with a gun, after which a rubber spatula is used, thanks to which mashing is performed. When considering how to glue foam, it should be understood that liquid foam does this job perfectly. This glue is more like foam, which is squeezed out by pressing the sprayer. The essence of the work is quite simple, you should blow out all the seams with foam and give time to dry. In a short period of time, complete freezing will occur. Next, you need to remove all excess foam with a clerical knife.

The thermal insulation of modern materials is based on the creation of volumes with a stationary gaseous medium. To increase the already high performance of materials for insulation allows gluing foam to the wall. For this, adhesive compositions are used, both in the form of semi-finished products and ready-to-use. Before you decide how to glue the foam, you need to understand at least a little the specifics of the use of adhesives.

Before gluing the foam to the wall, select the adhesive composition that is optimally suited to the wall material and the insulation itself.

The use of expanded polystyrene foam imposes certain restrictions on the substances that make up the adhesive used. When purchasing it, you must carefully study the ingredients and if it contains:

• esters (methyl acetate, butyl acetate);
• alcohols;
• derivatives of natural gas (propane, hexane and others);
• amines (aniline, etc.);
• hydrocarbon processing products (gasoline, kerosene, white spirit, etc.)
• ketones (acetone, etc.);
• compounds containing chlorine (dichloroethane, chloroform);
• nitrogen compounds (nitrobenzene, nitromethane);

then you do not need to buy such glue. The compounds included in it have a destructive effect on the structure of expanded polystyrene either immediately or over time.

To obtain a high-quality result when gluing polystyrene foam on walls, it is recommended to use the following materials:

• formulations based on dry mixes;
• "liquid nails";
• mounting foam;
• polyurethane foam.

In some cases, it is possible to combine the indicated adhesive compositions.

Before gluing the foam, its surface can be treated with a needle roller to improve adhesion with adhesive mixtures.

We use semi-finished products

Dry adhesive compositions allow you to glue the foam to the brick wall efficiently and quickly enough. Their use has several advantages:

• low cost;
• availability;
• low consumption of glue per unit area.

• place of sale (it is desirable to purchase bags located and stored indoors);
• the integrity of the package (the surface of the bag must be without through gusts);
• production date (it is not recommended to buy a mixture made 12 months before purchase);
• absence on the bag of traces of liquid ingress or wetting of the surface;
• the mobility of the contents when carrying (there should not be a feeling of having a large stone in the bag).

• the need for water to prepare the solution;
• the time spent on its preparation;
• relatively long final fixation on the surface (about 3 days);
• the impossibility of attaching polystyrene foam to concrete and metal surfaces.

The finished mixture can be applied both to the foam and to the wall. Plate stickers are made from the bottom up.

Help an old friend

Of particular difficulty and confusion is the question: “What kind of glue to glue the insulation to the metal?” The answer is simple.

Sticking foam on a metal surface is carried out using PVA building glue.

Being an affordable and inexpensive material, it does an excellent job with the task assigned to it. The burlap impregnated with glue is fixed on the metal. After the glue dries, the foam is glued to the wall. Plates are abundantly lubricated with PVA.

Expect an increase in the density of the glue (during this time, you can spread the next plate). Press the plate for a short time. As a result, a good fastening strength result is obtained.

Fast but expensive

Many compositions require holding for some time (sometimes long) the glued board. How can I quickly glue the thermal insulator, thereby reducing downtime?

"Liquid nails" are used when it is necessary to insulate a small area of ​​\u200b\u200bthe wall from any material. Before gluing the foam to concrete or other material, clean it of foreign deposits and cover with a primer layer.

The main advantages of this composition are:

1. versatility of application;
2. fast installation (long-term holding of the sheet is not required).

A rather high cost should be attributed to the disadvantage, but you have to pay for convenience. "Liquid nails" are sold in tubes of 300 ml. Squeezed out of the tube with a sealant gun.

And here you are, my old lady

Polystyrene foam can be glued to concrete, brick, stone with mounting foam. To do this, just apply it around the perimeter and cross through the center. Attach the plate to the installation site. After installing several rows, fill the gaps between the slabs with foam.

Advantages of using polyurethane foam:

• reliable fastening of plates on stone building materials;
• ease of application.

There are still many more cons:

• increased degree of expansion after application (due to uneven expansion, voids and surface irregularities may form);
• high consumption of foam per square meter;
• the need for long-term fixation of the plate due to the long setting;
• destruction of the structure of the thermal insulator under the influence of foam components is possible.

If you can reduce the consumption by using a foam gun, then nothing can be done about other shortcomings. Therefore, it remains only to accept or choose another adhesive composition, which will be used to glue polystyrene foam.

Young, but strong, he is devoid of flaws

If you ask: “What is the best way to glue foam insulation?”, Then you will hear in response: “Polyurethane foam adhesive-foam”. It is specially designed for fastening polystyrene foam to vertical surfaces of various materials.

Before sticking the foam to concrete or other material, clean the surface of foreign deposits, dust and dirt. Prime the wall. Using a gun, apply foam to the surface of the slab around the perimeter and in the center of the sheet. Attach the adhesive sheet to the wall. Hold for 5 seconds. You can move on to gluing the next one.

The use of polyurethane foam adhesive as a means of fastening has huge advantages:

• excellent adhesion of the foam surface with any others;
• low consumption of foam;
• convenience of work;
• speed of installation;
• high moisture resistance.

In earlier periods of construction, clay was used to insulate the walls. Before sticking the polystyrene foam, it is not necessary to remove the clay layer. It is enough to cover the surface of the clay with any acrylic primer. Now you can glue the insulation.

In the process of application and operation of the glue-foam, no minuses were found.

You need to know how to properly glue the foam. Pay attention to the absence of voids between the boards to be glued, maintaining the strict vertical and horizontal position of the sheets.

When insulating the walls of the house, you can only do with the mechanical method of fixing the foam. But the use of glue creates additional closed air spaces under the slabs, thereby reducing heat loss from heated rooms.

An interesting experiment with styrofoam gluing:

Wood is a material that “breathes”, and this is the main advantage of wooden houses. Therefore, there are doubts about the insulation of a house made of wood with foam. Some people argue that this can and should be done, others are sure that under the foam plastic the tree will begin to rot. However, experts say that this can be done, but only with a "breathing" insulation. Otherwise, you will deprive the building of its benefits.

There is a rule that says: the vapor permeability of materials towards the street should increase so that no obstacle is created for moisture to escape to the outside. If this rule is neglected, then moisture will condense at the border of the dense material, which leaves the room, which leads to the formation of condensate and rotting of the wood.

How to glue extruded polystyrene foam

Therefore, vapor permeability is a very important factor when choosing a heater.

Styrofoam has a lower vapor permeability than wood, so it is not the best option for insulation. But with the organization of a high-quality ventilation system, the amount of steam escaping will be minimal, therefore, there will be no harm from it. Therefore, if you have well-designed ventilation. then the foam can be used to insulate a wooden house.

Important! In no case do not use this material for insulation of rooms and buildings with high humidity (baths, saunas, kitchens, and so on).

Mounting process

Before starting the insulation, it is necessary to check all the joints between the logs or beams. If the insulating material is uneven, then renew it and fill the voids with mounting foam. Next, boards are nailed vertically to the wall - so that their outer surface is flush with the plane of the wall. If there is a need, then for this you will need to cut off individual logs. Laths are nailed in the center of these boards, which will serve as a frame. The installation step of the rails should be 5 millimeters less than the width of the insulation.

Important! When installing the diffusion membrane, carefully read the instructions for use so that it fits with the correct side to the insulation.

How to glue styrofoam to wood?

Having figured out how to insulate a house with polystyrene foam, it is necessary to dwell in more detail on the methods of its fastening. There are several ways to do this:

• Fastening between the crate due to interference (as described above);
• Installation with special nails (fungi);
• Fastening with adhesives;
• Foam fixing.

The use of special nails is a fairly common practice when installing insulation, because they securely hold the sheets. But she has a drawback, which is the need to putty all the places in which nails are hammered. It is also necessary to take into account the fact that metal nails will act as an additional bridge for cold, because metal conducts it well. This problem can be solved with the help of plastic fungi.

Adhesives do not have problems like nails, but you need to be very careful when choosing them. So, the glue must be necessarily resistant to moisture and temperature changes, otherwise it will be useless. Most often, cement mortar with the addition of glue is used for this. As for mounting foam, it is rarely used for fastening, basically, it is needed to fill all the cracks.

Advice! It should be noted that the most effective method of fastening is considered to be "landing" sheets on a cement mortar and further strengthening them with nails.

Styrofoam is a porous, lightweight white material. It is usually used in construction work, most often for insulation.

It can also be used for packing goods or furniture, equipment during transportation and for handicrafts. In order for the desired design to turn out to be strong and not fall apart in a day, it is important to know how and with what to glue the foam correctly at home.

Choosing the Right Adhesive

Glue the foam to paper, cardboard or wood with ordinary PVA glue. It is quite durable and tenacious. Ideally, PVA is suitable for use in the manufacture of small crafts, which will later be in a static position and will not be subjected to stress.

You can use special glue. It is designed to be in direct contact with foam. It is usually sold in specialized stores for needlework or in construction. This glue is more expensive than PVA and harder to find. Please read the information on the back of the tube carefully before purchasing. Some types are designed for gluing parts of the foam only among themselves, while others - with other materials. This glue is usually called Styroglue.

You can use special glue. It is designed to be in direct contact with foam.

Aerosol glue is suitable for connecting pieces of foam to each other and to other materials. It is sold in large containers and is consumed quite sparingly. In addition, spray adhesive has a low price. You can find such products in a hardware or hardware store. Often it is multifunctional, so with one spray you can glue the foam to foam, paper, cardboard, wood, metal.

A glue gun is also suitable for gluing foam. Please note that it should work at the lowest possible temperatures. Too much heat will cause the styrofoam to melt, and this will not only ruin the look of the work, but can also be hazardous to health. In construction, more viscous and dense types of adhesives are usually used. Among them are epoxy or instant glue, as well as liquid nails.

Basic rules for gluing

After selecting the adhesive, prepare the surfaces. It is necessary to clean them so that grease, dust and other contaminants do not reduce the tenacity of the adhesive. If you are working only with foam, then it is enough to thoroughly wipe both sides with a dry cloth. In the event that you glue the foam to raw wood or very uneven material, sand it with sandpaper. It is also necessary if you are dealing with large pieces of material. This will increase the level of adhesion, and the foam will stick easily.

The next step is to apply glue. If you need a strong and durable fixation, then spread it over the entire area to be glued in a thin and even layer. If you do not need to glue so tightly, apply a few drops or strips of glue to the surface of the foam. In the case when you have to work with a large layer, pour the glue into a glass or plastic container and spread it with a brush with artificial bristles. Some adhesives may ooze out of the seams and even foam. In this case, wipe off excess material as soon as possible with a dry cloth. Remember that glue is difficult to wash off by hand, so it is best to work with rubber gloves.

After that, attach the surfaces to be bonded to each other and press firmly. Depending on the type of glue, you have about a minute to change the position of the pieces, after which the substance will begin to set. To strengthen the fixation, apply a thin layer of glue to the border of the two surfaces where they touch. In the next step, you will just need to wait for the glue to dry.

When working with foam, do not use types of glue that are designed for other surfaces, such as metal, wood, or fabric. It is likely that they will fulfill their function, but at an unreasonably high cost. In addition, they can ruin the foam. For this material, those types of glue that contain a solvent for plastics: acetone or alcohol are not suitable. For the same reason, do not use universal rubber glue.

Remember that Styrofoam is plastic stuffed with air. It is very light and fragile. Work with it carefully, do not press hard when gluing, as the craft may deteriorate. When working with adhesive at home, use personal protective equipment such as masks and gloves, and ventilate the area well.

How to glue styrofoam to wood

How and how to glue the foam to various surfaces

If you want to provide your wooden house with warmth and comfort, then you should take maximum care of its internal and external thermal insulation. This is where the question arises: is it possible to insulate a wooden house with foam plastic? If so, how to do it correctly, and what should be taken into account?

For a wooden structure, you can use foam for external thermal insulation. However, you need to work very accurately and carefully so as not to damage the tree and not cause it to rot due to poor vapor permeability.

Versatile and popular insulation material

Although polystyrene appeared relatively recently in the construction industry, however, it has become very popular and popular, as it is a very convenient and high-quality material.

Its main advantage is the ability to withstand high mechanical stress even at its smallest density. This is a strong enough indicator to be used for thermal insulation of walls, houses (including wooden ones), and in construction in general.

Also, its advantage is that it is very light, not expensive in cost, resistant to moisture and has good sound insulation.

Insulate a wooden house with foam

This material is very often used to insulate the facades of wooden structures, since due to its low density it does not exert a large load on the wooden building and its foundation.

Styrofoam is perfect, especially in cases where it is necessary to reconstruct the house and restore outdated wooden walls. Using this option, you will be able to provide your homestead with warmth, good energy-saving properties and comfort for everyone living in the house.

Such a building material is used for thermal insulation, both external and internal walls. Foam boards cling to the wall from the outside, either with the help of special building tools, or glued with the help of special. glue and mastics.

There is another cheaper method of fastening - this is to use cement mortar as an adhesive material.

Every material has flaws and this one is no exception. For example, a heater of this type ignites very easily and therefore is terribly afraid of fire, as, in principle, the tree itself.

Therefore, using it for thermal insulation, be sure to take care of the fire safety of the building, for this you should increase the fire resistance of the walls with the help of some measures. For example, for a wooden building, one of the optimal solutions is to cover the walls with various types of plaster or other fire-resistant materials.

Features of the preparatory work

In order for this work to turn out qualitatively, then it is important to perform it in the summer, especially in very hot weather. This is done so that the surface of the wall dries deep enough and thereby prevents the future appearance of steam or moisture inside the surface.

During the preparatory process, the surface should be cleaned of dirt, old paint, and then you can see the real state of the tree. If suddenly mosses, gaps, stumps, lack of tow at the joints of logs are found, then they should be filled with mounting foam.

After that, you need to coat the walls with a primer solution to avoid the appearance of fungus or other damage on the tree. In addition, it is important to pay special attention to window drainage, namely, attach them to plastic or wooden windows before the surface is insulated with a heat-insulating system.

How to install foam

If you are convinced that it is still possible to insulate a wooden house with foam, then it is important to find out how to do it correctly. There are several methods: fastening with a crate, or with an adhesive solution.

To perform such work, you will need some tools, as well as materials, namely:

• foam boards;
• Dowels or nails;
• A hammer;
• stapler;
• Putty knife;
• Glue and bucket;
• Foam gun for mounting.

Internal wall insulation

Styrofoam can also be used for interior work, it can easily be used to insulate the walls of a wooden house and indoors. The work is almost the same as for the exterior.

Doing for centuries or how to glue the foam to the tree? Video

You can use the crate, or you can choose a more simplified version. To do this, treat the wall with a primer and then smear an adhesive solution on it.

Then we proceed to fixing the foam. The main thing during its installation is that the joints fit snugly enough. After the glue dries to the end, it should be fixed with dowels or special mushroom nails.

After completing the above works, a reinforced mesh is installed on a flat base, which is covered with two or three layers of plaster. In conclusion, the wall can be covered with siding, clapboard, decorative or any other plaster.

What is the correct and fast technology for internal insulation?

The technology depends entirely on what material you are going to use. However, there are some precise rules that must be followed:

• Perform the preparation of the walls, namely the complete cleaning, and then its alignment;
• vapor barrier system;
• crate;
• caulk;
• Installation of a heater;
• Installation of ventilation systems;
• Internal finishing works.

Is it possible to insulate a wooden house with foam plastic? Now you can accurately answer this question. With the help of this building material, it is possible to carry out thermal insulation of a wooden building both outside and inside.

The technology of work is quite idle, it just requires accuracy, patience and strict adherence to certain rules and nuances.

In order for your family to feel good and comfortable in the house during the cold winter, use this option for warming the house, and you will be completely satisfied with the result.

What is the most reliable way to glue polystyrene to a tree

When insulating a house, the question often arises: how to stick styrofoam to wood? There are any ways that we will consider in this article.

But you also need to figure out whether it is necessary to do insulation work with foam plastic at all. wooden walls.

Is styrofoam so beautiful?

Wood is a material that "breathes" and this is an important advantage of wooden houses. Due to this, there are suspicions about the insulation of wooden houses with polystyrene foam. Some people say that it is possible and necessary to do this, others are sure that under the polystyrene foam the tree will rot. However, professionals say that this can be done, but only with a "breathing" heat insulator. Otherwise, you will deprive the building of its positive qualities.

There is a rule that says: the permeability of the vapor of materials in the direction of the street should increase so that a barrier is not created for moisture to escape to the outside. If you disdain this rule, then moisture that leaves the room will condense on the border of a dense material, which will lead to the appearance of condensation and rotting of wood. Due to this, the permeability of steam is an essential point in the selection of a heat insulator.

Styrofoam has a much lower vapor permeability than wood, making it a poor choice for thermal insulation. However, when organizing a high-quality ventilation system, the amount of steam coming out will be small, therefore, there will be no damage from it. Thanks to this, if you have properly designed ventilation, then expanded polystyrene can be used to insulate a wooden house.

The main thing! Just do not use this insulation material in rooms and buildings with high humidity (baths, saunas, kitchens, and so on).

Assembly process

at the beginning of the insulation, all joints between logs or beams should be checked. If the insulation material is uneven, renew it and fill in the voids. foam for installation. Further, boards are nailed vertically to the wall surface - in such a way that their outer surface is located on the same level with the wall surface. If necessary, then for this it will be necessary to cut off some logs. Planks are nailed along the very center of these boards, which will serve as a frame. The installation step of the slats should be 5 millimeters less than the width of the heat insulator.

Next, the expanded polystyrene is placed in the frame, starting from the bottom. If the distance of the frame is maintained correctly, then the material will be held in it due to interference. If the sheets fall out, then they must be attached with polystyrene foam wedges or nails. An important requirement is that there are no gaps between them. Next, a diffusion membrane is placed on the material. It is fixed with a stapler, and the joints are glued using adhesive tape. Then you can sheathe the wall with the selected finishing material.

The main thing! When installing the diffusion membrane, carefully follow the instructions for use so that it fits with the correct side to the heat insulator.

How to stick polystyrene foam to a tree?

Having figured out how to make the house warmer with polystyrene foam, you need to dwell in more detail on the methods of its fastening. There are several options to do this:

• Fastening between the crate due to interference (as described above);
• Installation with special nails (fungi);
• Fastening with adhesives;
• Foam fixing for mounting.

The use of specialized nails is a fairly common practice when installing heat insulators because they hold the sheets firmly. But she has a drawback, which is the need to putty all the places in which nails are hammered. You also need to take into account the fact that iron nails will act as an additional bridge for the cold, because the metal conducts it perfectly. You can solve this problem with the help of plastic fungi.

Glue compositions do not have problems, like nails, but you need to be careful when choosing them.

How can you glue foam to wood?

So, the glue must be primarily moisture resistant and temperature extremes, otherwise it will be in vain. Very often, a solution of cement with the addition of glue is used for this. As for the foam for installation work, it is used infrequently for fasteners, as a rule, it is necessary to fill all the cracks.

Advice! It should be noted that the most excellent method of fastening is considered to be "landing" sheets on a cement mortar and then fixing them with nails.

The video shows mounting foam-glue, which is used when insulating wooden walls with polystyrene foam

Low cost and excellent thermal insulation properties make foam boards an increasingly popular building material. The durability of operation directly depends on the means of fixation, so it is reasonable to have a problem with how to glue the foam so that it performs its functions longer.

The main characteristics of the foam

Before gluing to a wooden, concrete or brick surface, as well as deciding how to glue the foam together, you need to learn about the properties and characteristics of this material. Styrofoam, or, as it is otherwise called, polystyrene foam, is formed as a result of foaming polymers. 98% of the material is a gas located in the smallest cells with very thin walls.

Typically, foam boards are used as insulation for the walls of building facades and for finishing ceilings, walls, slopes indoors, in basements, on balconies and loggias. Expanded polystyrene can be glued to a concrete, wood, metal, brick, plasterboard and gas silicate base.

The main characteristics of the foam:

• with a small mass, excellent rigidity;
• long service life;
• excellent thermal insulation properties;
• resistance to moisture;
• expanded polystyrene with flame retardants does not burn;
• does not pollute the environment during disposal after operation;
• protects from wind if applied outside the building;
• does not emit substances harmful to the human body, it is possible to work with this material without protective equipment;
• does not dry out and does not shrink during prolonged use, resistant to temperature changes;
• it is easy to work with foam plastic - it is easy to cut it, installation can be carried out using improvised means;
• molds do not develop on it;
• inexpensive.

Using expanded polystyrene as an insulation material instead of wood, brick, concrete or mineral wool saves time, money and indoor space.

The foam has disadvantages:

• breaks easily;
• has very poor breathability;
• is destroyed under the action of mixtures, which include nitrolac;
• deformed when hit on the surface of the solvent and ultraviolet rays.

Gluing methods and types of adhesive compositions

You can attach the foam boards to the surface with glue, dowels, or both at the same time. Foam plastic is usually fastened with adhesive compositions indoors, with dowels and glue - when working on the facade. Fixation only by means of dowels is used in extremely rare cases, this is due to the fact that the required level of reliability cannot be achieved in this way. If the roof is insulated, then polystyrene foam is simply embedded in the crate.

Foam gluing is carried out using dry formulations and ready-made adhesive mixtures.

Advantages of powder products:

• excellent adhesion (adhesion) with brick, plaster, concrete, cement;
• immunity to temperature extremes and precipitation;
• elimination of small irregularities on surfaces;
• relatively low cost.

Disadvantages of dry mixes:

• the adhesive composition must be prepared, it will take time, in addition, you need to know how to properly combine the powder with water in order to achieve a uniform consistency;
• you will need a mixing container and a construction mixer;
• dust is released during cooking.

Ready-made adhesives will allow quick and high-quality gluing of foam plastic to foam plastic, concrete, brick and wood surfaces, OSB panels or cellular blocks. The most commonly used aerosols in spray cans based on polyurethane foam. Such materials are very convenient, while one cylinder is enough to glue approximately 10 m 2 of foam boards inside or outside the building. The glue is resistant to temperature changes and high humidity, hardens in about half an hour and securely attaches the foam to the base.

Important
Never use mixtures containing toluene, alcohol or acetone for gluing foam, as they destroy the structure of the material.
The disadvantage of ready-made adhesives is the high cost. Popular ready-made adhesive mixtures:

• Ceresit ST 84 Express;
• "Titan Styro 753";
• Penosil.

When deciding how to glue foam, you should not write off other ready-made adhesives, for example:

• silicone sealant is used if it is necessary to fasten small fragments of thin foam with a leveled base;
• "liquid nails" - a universal adhesive composition made on the basis of polymers. For example, "Installation Moment", Dragon, which will perfectly connect the metal base with the foam. It is convenient for them to stick polystyrene foam to the ceiling.

Advice
Before gluing, clean the metal surface from rust, grease and paint.

Stages and nuances

Gluing foam is carried out in several stages:

1. Unplug electrical wiring.
2. Clean the base from paint, whitewash, remnants of finishing materials and dirt.
3. Remove irregularities deeper than 1 cm, that is, level the surface. If this is not done, then the foam plates will break during installation.
4. Treat the surface with a primer, which includes antiseptics. This will improve adhesion and prevent the appearance of mold fungi.
5. Wait for the primer to dry.
6. Foam boards are usually glued from a corner or lamp. In the process of work, the desired configuration is given with the help of a mounting knife.
7. If aerosol glue is used, insert the can into the gun and cut off the tip. Apply the composition on the wrong side of the foam board in strips along the edges (retreat 2-4 cm from the very edge) and diagonally. It is also permissible to squeeze out the glue with dots - in the center and in the corners.
8. Dilute the dry mixture with water until a homogeneous consistency is obtained and spread the plate with a small notched trowel, a uniform thin layer should be obtained. Another option is to apply glue pointwise around the perimeter and in the middle, evenly distributing it over the surface.
9. Press the foam to the base and hold for a few seconds. Remove excess adhesive with a damp cloth or even spatula.
10. In the same way, glue the next plate end-to-end to the previous one. If a gap of more than 2 mm wide has formed between them, blow it with mounting foam or putty.

It is necessary to press the foam to the surface with the rule, and level it with the help of the building level.

Advice
When using additional fasteners (dowels), wait for the adhesive to dry completely and only then drill holes and drive in dowels-umbrellas.

How and with what to stick to concrete, wood and brick surfaces

If it is required to mount polystyrene foam to a concrete base during external thermal insulation work, then it is better to use dry compositions in the form of a powder. This is due to the fact that they have a cement component, polymers and sand, which provide reliable adhesion.

The best tools are:

• "T-Avangard-K";
• Ceresit CT 83;
• Armierungs-Gewebekleber.

The composition of "T-Avangard-K" is suitable for fastening foam plates not only to concrete, but also to brick bases, gypsum and cement plasters. The dry mix is ​​available in 25 kg bags. One package is diluted with 5-6 liters of water. The powder is valid for 6 months from the date of issue. Available in summer and winter versions. The first one is recommended to be used at temperatures from +5 to +35 ° C, the second - from -10 to +5 ° C. The cost of one bag is, on average, 275 rubles.

Ceresit CT 83("Ceresit ST 83") is a high-quality, fast-hardening compound that is perfect for any mineral substrates. Available in bags of 25 kg, the finished mixture should be used within two hours. The price per bag varies from 413 to 539 rubles.

Ready-made adhesive mixture (glue-foam) Ceresit ST 84 Express should be used at temperatures from -10 to +40 ° C and in conditions of high humidity. It is perfect for concrete, brick surfaces, as well as cellular blocks and OSB boards. Adhesive foam Ceresit ST 84 Express consists of butane, propane and polyurethane. One bottle with a capacity of 750 ml costs 600 rubles.

For interior decoration and thermal insulation, rolled foam is most often used. For him, it is better to use powder mixtures based on gypsum.

plaster Perlfix issued by the company Knauf. Packed in bags of 30 kg. The glue will do an excellent job of gluing polystyrene foam to foam concrete, plaster, ceramic brick bases. It is not necessary to level the surface before using the composition. To improve the adhesive properties, the foam blocks are pre-treated with concrete contact. It is not recommended to work with glue if the air temperature in the room is below +5°C. One package Perlfix weighing 30 kg costs, on average, 280 rubles.

Styrofoam is a high-quality and at the same time inexpensive building material, which is successfully and often used as a heater in almost any room. For its gluing, dry mixes, ready-made adhesive compositions in the form of aerosols and "liquid nails" are used. When deciding which adhesive is better to glue the foam, it must be borne in mind that the composition in the form of a powder will be cheaper, but the finished mixture is much more convenient to use. When carrying out work outside the building, on the facade, be sure to use dowels for additional fixing.

All photos from the article

Fastening foam to a wooden wall can be done in a variety of ways, and the choice of one technology or another depends on the design features and type of finish. It is important to choose the best option that will provide high thermal insulation and protect structures from adverse effects. In this review, we will figure out how to carry out the work and what factors to pay special attention to.

What you need to know about this type of insulation

We note right away that polystyrene is not the most popular solution for wooden buildings for a number of reasons:

Important!
High-quality foam should be selected, it is not worth saving and purchasing low-density materials, they are very fragile and can break even during operation.
In addition, it is desirable to use a heater with flame retardant additives in the composition, it is much more resistant to fire.

Mounting types

We figured out whether it is possible to sheathe a wooden house with foam plastic, and came to the conclusion that this option is appropriate when building a high-quality ventilation system. Now consider how to attach sheets to the surface.

crate

Do-it-yourself instructions are as follows:

• First of all, the frame is attached to the surface, in which the insulation will be located, the width of the spans should be 5 mm less than the width of the sheets in order to insert them tightly.
• Sheets are placed from the bottom up, if we are talking about walls, or from any convenient side, if the ceiling is being processed. After completion of work, it is necessary to check the surface for the presence of joints and cracks. If they are, then you need to seal them with polyurethane foam.

Using special fasteners

Consider how to fix the foam to a wooden wall using special fasteners, which are caps with a diameter of 5 or more centimeters and self-tapping screws, the length of which should be sufficient to securely fix the insulation to the wall.

The technology of work has the following form:

• First of all, you need to prepare the base- if there are gaps or significant irregularities in it, then they must be repaired to ensure the best effect.
• The workflow is carried out as follows: fastening is made from the bottom up, each sheet is fixed by several fasteners. The diagram below shows an option for saving fasteners, you do not need to hammer all five rondolas on one sheet, you can fix the element in the middle, and use the rest in the corners, that is, they will hold several sheets at once, which reduces material consumption several times.

• After completion of work, it is necessary to carefully inspect the surface and, if there are cracks, they must be filled with foam..

gluing

A very reliable option, and its only drawback is the high price of the trains, which is especially noticeable with large volumes of work.

The technology is simple, but requires accuracy:

• Before gluing the foam to the tree, it is necessary to level the surface, otherwise, with drops, the consumption of the adhesive composition will increase significantly, and the reliability of the connections may decrease.
• Next, you need to decide how to glue the foam to the tree, there are two main options: mounting polyurethane foam or a special adhesive, which is available in the same containers as foam, but has improved properties and increased yield. The second option is preferable, so try to use it.

• The surface must be free of dust and free of wet areas., as this negatively affects the adhesion of the composition. The composition itself is applied to the sheets with any option convenient for you - with a snake, around the perimeter, with dots. The most important thing is reliability, and the rest of the nuances do not matter.

• Next, the element is pressed tightly for a few seconds., after which it can be released, the glue begins to set within half an hour, complete solidification occurs in 24 hours.

Remember!
The final stage is the sealing of cracks at the joints, it can be moved either with the same adhesive composition or with mounting foam, there is no fundamental importance here.

Conclusion

In fact, attaching foam to a wooden base is not difficult, it is important to carry out this work in such a way as to ensure the best thermal insulation performance and prevent damage to the material due to condensation. The video in this article will walk you through the workflow in more detail and demonstrate some of the points described above.